For many of our Unity 3.5 projects we have yet begun designing our GUI's at a 2048x1536 resolution, yet we deploy to iPad Retina's all the time. In Unity 3.5 we had the option in the Build Settings to build to the resolution of "Standard", essentially forcing the device to run our application at a size of 1024x768.
In Unity4 it looks like this resolution setting has changed to 768p (iPad).
When I build a project in Unity4 at this resolution, to a Retina device, the AR camera appears in the upper right corner, like it can't quite get itself situated.
This is remedied by modifying the build settings to be something like "Native Resolution" or "High Quality", but for the reasons listed above we can't build to that resolution because of our GUI sizes.
Has anyone else ran into this? Is there a fix or setting that I'm missing to fix the ARCamera?